Is there a difference between polymer composites, thermoset composites, and thermoplastic composites? Polymer composites can be thermoset or thermoplastic, so thermoset composites and thermoplastic composites are both types of polymer composites. The main difference between a thermoset and thermoplastic is a thermoset cannot be reshaped after it’s formed, cured, and cooled while thermoplastics can be reheated and re-formed. 

WHAT WE DO: WE ARE A FORMULATOR 6 CUSTOM FORMULATION N OVE MBE R 2 , 2023 W E BCAS T P RE S E N TAT I O N Complementary technologies and customer relationships offer opportunity to advance commercial strategy Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications AVIENT PROTECTIVE MATERIALS FIRST YEAR 8 Composites comprises over half of Specialty Engineered Materials, compared to 9% in 2016 Proven history of success in areas such as outdoor high performance, defense and sustainable solutions Composites 44% 56% 2023E Sales Collaboration & InnovationComposites as a % of SEM People & Culture Talented, passionate, and creative associates drive continued integration success and allow two cultures to come together as one Avient Lightweight Protective Laminates: PROJECTILE PROTECTION Dyneema® Fiber Solutions Cushioning + Fit + Comfort: LONG-TERM WEAR reSound™ Versaflex™ Thermoplastic Elastomers Strength + Durability + Light-Weighting: SOLID MOUNTING BRACKETS Nymax™ Bergamid™ Complēt™ Engineered Materials Durability + Lubricity: HELMET LATCHES Lubri-One™ Internally Lubricated Polymers Color Consistency and Weatherability CUSTOMIZED SPECIFICATIONS Avient Color and Additive Solutions Antennae Performance FAST, RELIABLE CONNECTIONS PREPERM™ Low-Loss Dielectric Thermoplastics AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations9 10 AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES 10 Q 3 P E RFO RMAN CE 15.4% 16.3% 2022 PF 2023 Results vs. Avient 2011, 2018 and 2021 multiples reflect trailing 12 months EBITDA at December 31. 28 EV / 2023E EBITDA 6.5 8.5 11.0 8.9 12.0 11.9 10.9 9.9 8.2 16.3 13.8 11.9 9.6 9.5 9.5 9.2 7.7 11 21 O ct 23 PM PP FM C C Avient Historic Multiple Avient Specialty Other Specialty / AP P E N DI X 30 Performance Additives 16% Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 40% 37% 18% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Building and END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) 9% 32 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2022 REVENUE | $2 .4 BILLION US & Canada 34% 38% END MARKET REGION 33 34% 21% Building & 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 BILLION US & Canada 52% 35% 34 19% 8%Industrial 16% 9% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES 27% 14% 17% Building & (37% of sales)Transportation 12% Building & US & Canada (40% of sales) 7% 56% 23% 7% Building & 1% LATAM (5% of sales) 3% 35 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Trilliant™ HC Healthcare Thermoplastics Thermoplastic Elastomers Versaflex™ HC Thermoplastic Elastomers

PolyOne GLS Thermoplastic Elastomers recently worked with one of the largest infant care brands in Japan to develop a new feeding set for infants and toddlers. We worked closely with this customer to understand the application’s needs and were able to formulate a solution that meets today’s increasingly rigorous food-contact safety requirements,” said Charles Page, director of global marketing, PolyOne GLS Thermoplastic Elastomers. Media contact Sandy Wagner Marketing Communications Manager PolyOne GLS Thermoplastic Elastomers +1 815-385-8500 sandy.wagner@avient.com

Versalloy™ Thermoplastic Elastomers A leading North American manufacturer of polypropylene (PP) hose for medical applications, including laser surgery, respiratory care and sleep apnea equipment, faced a challenge with its existing thermoplastic vulcanizate (TPV). Discover more about Versalloy™ Thermoplastic Elastomers

Cap Liners: Thermoplastic elastomers provide exceptional barrier seals while maintaining low torque for easy open characteristics. Regulatory compliance for aqueous, acidic, alcohol and fatty food applications are available with GLS thermoplastic elastomers. Caps, Closures & Containers: Thermoplastic elastomers play a big role in the design of ergonomically enhanced packages that can help aging users accomplish simple tasks such as opening a bottle of aspirin or a jar of coffee.

Cap Liners: Thermoplastic elastomers provide exceptional barrier seals while maintaining low torque for easy open characteristics. Regulatory compliance for aqueous, acidic, alcohol and fatty food applications are available with GLS thermoplastic elastomers. Caps, Closures & Containers: Thermoplastic elastomers play a big role in the design of ergonomically enhanced packages that can help aging users accomplish simple tasks such as opening a bottle of aspirin or a jar of coffee.

Versalloy™ Thermoplastic Elastomers A leading North American manufacturer of polypropylene (PP) hose for medical applications, including laser surgery, respiratory care and sleep apnea equipment, faced a challenge with its existing thermoplastic vulcanizate (TPV). Discover more about Versalloy™ Thermoplastic Elastomers

Versalloy™ Thermoplastic Elastomers A leading North American manufacturer of polypropylene (PP) hose for medical applications, including laser surgery, respiratory care and sleep apnea equipment, faced a challenge with its existing thermoplastic vulcanizate (TPV). Discover more about Versalloy™ Thermoplastic Elastomers

Thermoplastic Elastomers Versaflex™ HC Thermoplastic Elastomers Versalloy™ Thermoplastic Elastomers